Access to ICESat-2 Derived Canopy Height Model, Version 1 data set (IS2CHM) in the legacy, on-premises archive at the NASA National Snow and Ice Data Center Distributed Active Archive Center (NSIDC DAAC) will be retired on 15 January 2026. The NASA Earthdata Cloud is now the primary data archive for this data. If you currently access data through the legacy, on-premises archive, including through the HTTPS File System or through the Earthdata Search Stage for Delivery (ECHO Orders) option, please update your data access workflows and scripts to use the Earthdata Cloud archive.
All NSIDC DAAC data, including the IS2CHM V1 data set, in NASA Earthdata Cloud can be accessed via HTTPS through: https://cmr.earthdata.nasa.gov/search/site/collections/directory/NSIDC_CPRD/gov.nasa.eosdis.
The NSIDC DAAC User Services Office provides support for direct data download from Earthdata Cloud HTTPS and access to our AWS Simple Storage Service (S3) buckets. For more details on these access options, please see:
https://nsidc.org/data/user-resources/help-center/nasa-earthdata-cloud-data-access-guide